1 Fri Sep 5 13:36:44 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
3 * sched.c (update_flow_info) When looking if to set found_split_dest
4 or found_orig_dest, look at all parts of a PARALLEL.
5 * haifa-sched.c (update_flow_info): Likewise.
7 Fri Sep 5 10:08:44 1997 Jeffrey A Law (law@cygnus.com)
9 * v850: New directory for v850 port.
10 * v850/lib1funcs.asm: New file.
11 * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
12 * ginclude/va-v850.h: New file.
13 * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
14 * configure.in (mn10200-*-*): New target.
16 * config.sub: Handle v850-elf.
17 * Makefile.in (USER_H): Add va-mn10200.h.
18 * invoke.texi: Document v850 stuff.
20 Fri Sep 5 09:37:50 1997 Jim Wilson (wilson@cygnus.com)
22 * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
23 __HPUX_ASM__ versions.
25 Fri Sep 5 09:08:44 1997 Jeffrey A Law (law@cygnus.com)
27 * install.sh: Delete duplicate install script.
29 Thu Sep 4 23:14:27 1997 Stan Cox (coxs@dg-rtp.dg.com)
31 * reg-stack.c (subst_stack_regs): Pop the stack register for a
32 computed goto which sets the same stack register.
34 * reg-stack.c (compare_for_stack_reg): Swap only if the source and
35 destination are both on the regstack.
36 (subst_stack_regs_pat): Put the destination at the top of the regstack.
38 Thu Sep 4 15:02:27 1997 Jim Wilson <wilson@cygnus.com>
40 * mips.md (nonlocal_goto_receiver): Define.
42 * profile.c (output_arc_profiler): Check next_insert_after for non
43 NULL before deferencing it.
45 * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
47 Thu Sep 4 14:51:57 1997 Jeffrey A Law (law@cygnus.com)
49 * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
51 Thu Sep 4 15:01:49 1997 Michael Meissner <meissner@cygnus.com>
53 * toplev.c (rest_of_compilation): For passes starting with
54 flow_analysis, use print_rtl_with_bb instead of print_rtl.
56 * print-rtl.c (print_rtl_single): Print a single rtl value to a
59 * flow.c (print_rtl_with_bb): Print which insns start and end
60 basic blocks. For the start of a basic block, also print the live
63 Thu Sep 4 11:51:43 1997 Jim Wilson <wilson@cygnus.com>
65 * toplev.c (main): Change #elif to #else/#ifdef
67 * tlink.c: Include ctype.h.
68 * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
70 Thu Sep 4 11:17:16 1997 Mikeael Meissner (meissner@cygnus.com)
72 * bitmap.c: Conditionally include stdlib.h.
73 (free): Provide a declaration if NEED_DECLARATION_FREE.
75 Thu Sep 4 09:58:53 1997 Joel Sherrill (joel@OARcorp.com)
77 * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
79 Thu Sep 4 09:53:20 1997 Jim Wilson (wilson@cygnus.com)
81 * profile.c (output_arc_profiler): Verify next_insert_after is an
82 INSN before and after skipping a stack pop.
84 Thu Sep 4 07:39:19 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
86 * final.c (shorten_branches): Don't count the lengths of deleted
89 Thu Sep 4 09:43:01 1997 Jeffrey A Law (law@cygnus.com)
91 * version.c: Bump for snapshot.
93 Thu Sep 4 11:04:21 1997 Michael Meissner <meissner@cygnus.com>
95 * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
96 two bitmaps ANDed together.
97 (bitmap_print): Declare.
99 * bitmap.c (function_obstack): Don't declare any more.
100 (bitmap_obstack): Obstack for allocating links from.
101 (bitmap_obstack_init): New static to say whether to initialize
103 (bitmap_element_allocate): Use bitmap_obstack to allocate from.
104 (bitmap_release_memory): Free all memory allocated from
107 * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
108 EXECUTE_IF_AND_IN_BITMAP.
110 Wed Sep 3 10:39:42 1997 Jim Wilson <wilson@cygnus.com>
112 * alias.c (true_dependence): Address with AND can alias scalars.
113 (anti_dependence, output_dependence): Likewise.
115 * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
117 Wed Sep 3 09:28:50 CDT 1997 Joel Sherrill (joel@OARcorp.com)
119 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
120 mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
121 sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
122 definitions. Use -qrtems instead of -mrtems.
124 Wed Sep 3 09:05:41 1997 Robert Lipe (robert@dgii.com)
126 * xm-sco5.h (sys_siglist): Define.
127 (SYS_SIGLIST_DECLARED): Likewise.
129 Tue Sep 2 23:33:33 1997 Jeffrey A Law (law@cygnus.com)
131 * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
133 Wed Sep 3 02:09:30 1997 Torbjorn Granlund <tege@pdc.kth..se>
135 * except.c (eh_outer_context): Expand masking operation using
138 Tue Sep 2 18:09:39 1997 Jim Wilson <wilson@cygnus.com>
140 * alpha.md (floatdisf2-1): New pattern.
142 Tue Sep 2 18:41:55 1997 Jeffrey A Law (law@cygnus.com)
144 * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
145 * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
146 * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
147 * gcc.texi: Note that if you define sys_siglist that you should
148 also define SYS_SIGLIST_DECLARED.
150 * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
151 are relative to the next instruction, not the current instruction.
153 Tue Sep 2 14:22:43 1997 Jim Wilson <wilson@cygnus.com>
155 * local-alloc.c (contains_replace_regs): New function.
156 (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
157 verify that there is no existing REG_EQUIV note, and add a call to
160 Tue Sep 2 12:48:11 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
162 * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
163 (STARTFILE_SPEC): Always use crtbegin.o%s
164 (ENDFILE_SPEC): Always use crtend.o%s.
166 Tue Sep 2 12:00:36 1997 Jim Wilson <wilson@cygnus.com>
168 * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
170 * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
171 SFmode for 64 bit hosts.
173 Tue Sep 2 13:42:38 1997 Paul N. Hilfinger <hilfingr@CS.Berkeley.EDU>
175 * fixincludes: Permits spaces between # and define. Discard C++
176 comments in sys/pci.h on HP/UX 10.20.
178 Mon Sep 1 22:13:18 1997 Jeffrey A Law (law@cygnus.com)
180 * version.c: Bump for snapshot.
182 * pa.c (restore_unscaled_index_insn_codes): New function.
183 (record_unscaled_index_insn_codes): Likewise.
184 (output_function_prologue): Call restore_unscaled_index_insn_codes.
185 (output_function_epilogue): Free memory for unscaled_index_insn_codes.
186 (pa_reorg): Call record_unscaled_index_insn_codes.
188 * haifa-sched.c (move_insn): Handle notes correctly for insns
189 with SCHED_GROUP_P set.
191 Mon Sep 1 16:58:57 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
193 * alpha/xm-linux.h (USE_BFD): Undef before define.
195 Mon Sep 1 16:25:34 1997 Jim Wilson <wilson@cygnus.com>
197 * cse.c (cse_insn): Don't record BLKmode values.
199 Mon Sep 1 11:25:47 1997 Stephen Williams (steve@icarus.icarus.com)
201 * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
203 Mon Sep 1 08:29:46 1997 Jeffrey A Law (law@cygnus.com)
205 * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
206 * collect2.c (sys_errlist): Likewise.
207 * cpplib.c (sys_errlist): Likewise.
208 * gcc.c (sys_errlist): Likewise.
209 * protoize (sys_errlist): Likewise.
210 * configure.in: Check for strerror.
211 * xm-freebsd.h (HAVE_STRERROR): Remove definition.
212 * xm-gnu.h (HAVE_STRERROR): Likewise.
213 * xm-linux.h (HAVE_STRERROR): Likewise.
214 * xm-netbsd.h (HAVE_STRERROR): Likewise.
215 * xm-bsd386.h (HAVE_STRERROR): Likewise.
216 * xm-cygwin32.h (HAVE_STRERROR): Likewise.
217 * xm-dos.h (HAVE_STRERROR): Likewise.
218 * xm-mingw32.h (HAVE_STRERROR): Likewise.
219 * xm-pa.h (HAVE_STRERROR): Likewise.
220 * xm-papro.h (HAVE_STRERROR): Likewise.
221 * xm-sysv4.h (HAVE_STRERROR): Likewise.
222 * configure, config.in: Rebuilt.
224 * Makefile.in: Add several missing "else true" clauses.
226 * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
227 * mips-tfile.c: Likewise.
228 * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
229 * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
230 * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
231 * configure.in: Check for sys_siglist declaration.
232 * configure, config.in: Rebuilt.
234 Mon Sep 1 08:04:07 1997 Joel Sherrill (joel@OARcorp.com)
236 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
237 m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
238 sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
239 * i960/i960.h: Added SUBTARGET_SWITCHES macro.
240 * rs6000/sysv4.h (extra_subtarget_switches): Added new
241 macro EXTRA_SUBTARGET_SWITCHES.
242 * configure.in (sh*-*-rtems*): New target.
243 * sh/rtems.h: New file.
244 * sh/sh.h: Added SUBTARGET_SWITCHES macro.
245 * configure: Rebuilt.
247 Sat Aug 30 22:54:26 1997 Jim Wilson <wilson@cygnus.com>
249 * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
251 Sat Aug 30 10:49:46 1997 David Edelsohn <edelsohn@mhpcc.edu>
253 * rs6000.md: Make DF fused-add operations pay attention to
256 Fri Aug 29 19:19:54 1997 Jim Wilson <wilson@cygnus.com>
258 * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
260 Fri Aug 29 16:13:51 1997 Jeffrey A Law (law@cygnus.com)
262 * pa.md (reload_peepholes): Make sure operand is a REG before
263 examining REGNO. Allow general registers too.
265 Fri Aug 29 11:42:04 1997 Jim Wilson <wilson@cygnus.com>
267 * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
269 Fri Aug 29 09:33:20 1997 Philipp Thomas (kthomas@lxi165.gwdg.de)
271 * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
272 to reallocate abbrev_die_table.
274 Thu Aug 28 15:14:46 1997 Jim Wilson <wilson@cygnus.com>
276 * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
278 1997-08-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
280 * Makefile.in (config.status): Depend on version.c
282 * expr.h (insn_gen_function): Reenable prototype.
284 * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
287 Thu Aug 28 13:01:43 1997 Jim Wilson <wilson@cygnus.com>
289 * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
291 Thu Aug 28 07:03:15 1997 Jeffrey A Law (law@cygnus.com)
293 * version.c: Bump for latest snapshot.
295 * bc-optab.c: Conditionally include stdlib.h.
296 (free): Provide a declaration if NEED_DECLARATION_FREE.
297 * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
298 * rtl.h (free): Remove declaration.
299 * tree.h (free): Remvoe declaration.
301 * configure: Rebuilt.
303 Wed Aug 27 21:32:20 1997 Jeffrey A Law (law@cygnus.com)
305 * flags.h (flag_move_all_movables): Declare.
306 (flag_reduce_all_givs): Likewise.
307 * loop.c (move_movables): Handle flag_move_all_movables.
308 (strength_reduce): Handle flag_reduce_all_givs.
309 * toplev.c (flag_move_all_movables): Define.
310 (flag_reduce_all_givs): Likewise.
311 (f_options): Add -fmove-all-movables and -freduce-all-givs.
312 * invoke.texi: Document new options, including alias stuff that
313 wasn't included last time.
315 Wed Aug 27 18:08:51 1997 Bob Manson (manson@cygnus.com)
317 * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
320 * t-vxworks68: Ditto.
321 * t-vxworks960: Ditto.
324 Wed Aug 27 16:35:29 1997 Richard Henderson <rth@cygnus.com>
326 * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
327 if not already defined, and USE_C_ALLOCA not defined.
329 Wed Aug 27 16:08:43 1997 Jim Wilson <wilson@cygnus.com>
331 * config.guess: Replace with script that uses ../config.guess.
333 * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
334 if USE_GNULIBC_1 is not defined.
336 Wed Aug 27 15:49:12 1997 Richard Henderson <rth@cygnus.com>
338 * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
339 * config.guess: Recognize alpha-linux-gnulibc1.
340 * configure.in (alpha-*-linux-gnulibc1): New target.
341 (alpha-*-linux-gnu*): Don't build crtbegin/end.
343 Wed Aug 27 11:52:58 1997 Jim Wilson <wilson@cygnus.com>
345 * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
348 Wed Aug 27 01:56:18 1997 Doug Evans <dje@seba.cygnus.com>
350 * loop.c (combine_movables): Earlier insns don't match later ones.
352 Wed Aug 27 01:24:25 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
354 * config/linux.h (CC1_SPEC): Define it only if not defined.
356 * config/m68k/linux.h (CC1_SPEC): Undefine it before include
359 * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
360 USE_GNULIBC_1 is not defined.
362 * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1.
364 * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
365 as 1 if USE_GNULIBC_1 is not defined.
367 Wed Aug 27 00:49:14 1997 Jeffrey A Law (law@cygnus.com)
369 * reorg.c (dbr_schedule): Allow current_function_return_rtx
370 to be something other than a REG.
371 * function.c (expand_function_end): Fix current_function_return_rtx
374 * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
376 * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
377 (INSTALL_HEADERS): Delete.
378 * x-dguxbcs: Likewise.
379 * x-hp3bsd44: Likewise
382 Wed Aug 27 00:30:00 1997 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
384 * i386.md (pop): pop increments the stack pointer.
385 (prologue_set_stack_ptr): New pattern.
386 * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
389 Tue Aug 26 18:50:32 1997 Jim Wilson <wilson@cygnus.com>
391 * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
392 address where an offsettable address is required.
394 Tue Aug 26 17:54:56 1997 Michael P. Hayes (michaelh@ongaonga.chch.cri.nz>
396 * loop.c (check_final_value): Don't miss a biv increment in a
399 Tue Aug 26 12:03:49 1997 Jim Wilson (wilson@cygnus.com)
401 * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
402 TYPE_DECL_IS_STUB instead of DECL_NAME.
404 Mon Aug 25 23:27:10 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
406 * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
408 Mon Aug 25 23:27:10 1997 Jim Meyering <meyering@eng.ascend.com>
410 * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
412 Mon Aug 25 13:12:24 1997 Jeffrey A Law (law@cygnus.com)
414 * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
415 (find_post_sched_live): Likewise.
417 * haifa-sched.c (schedule_block): Remove old code to get arguments
418 from hard regs into pseudos early.
420 Mon Aug 25 08:55:00 1997 Jeffrey A Law (law@cygnus.com)
422 * version.c: Bump for new snapshot.
424 * local-alloc.c (update_equiv_regs): All the target to reject
425 promotion of some REG_EQUAL to REG_EQUIV notes.
426 * pa.h (DONT_RECORD_EQUIVALENCE): Define.
428 * pa.c (secondary_reload_class): (mem (mem ... )) does not need
431 * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
432 store of the argument registers.
434 Mon Aug 25 08:39:02 1997 Craig Burley (burley@gnu.ai.mit.edu)
436 * fold-const.c (multiple_of_p): New function.
437 (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
439 Mon Aug 25 01:47:41 1997 Jeffrey A Law (law@cygnus.com)
441 * expr.h (insn_gen_function): Temporarily remove prototype.
443 Sun Aug 24 17:22:21 1997 Jim Wilson <wilson@cygnus.com>
445 * Makefile.in (install-info): Don't cd into srcdir. Add srcdir to
446 filenames. Use sed to extract base filename for install.
448 Sat Aug 23 18:19:40 1997 John F. Carr <jfc@mit.edu>
450 * unroll.c (find_splittable_givs): Only share if two givs have the
451 same add and multiply values.
453 Sat Aug 23 14:36:27 1997 Jim Wilson <wilson@cygnus.com>
455 * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
456 * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
458 Sat Aug 23 00:18:22 1997 Jeffrey A Law (law@cygnus.com)
460 * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
461 around branch tables.
462 * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
463 and .end_brtab directives if TARGET_GAS.
465 Fri Aug 22 14:05:55 1997 Jim Wilson <wilson@cygnus.com>
467 * alias.c (true_dependence): Pass x_addr not x to varies.
469 * acconfig.h (NEED_DECLARATION_CALLOC): Add.
470 * configure.in: Add GCC_NEED_DECLARATION call for calloc.
471 * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
473 * config.in, configure: Regenerate.
475 Thu Aug 21 23:52:16 1997 John F. Carr <jfc@mit.edu>
477 * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
479 (record_set): Handle LO_SUM like PLUS.
480 (init_alias_analysis): When following chains of base addresses,
481 do not stop on reaching a hard register.
483 Thu Aug 21 20:17:37 1997 Jeffrey A Law (law@cygnus.com)
485 * version.c: Bump for new snapshot.
487 Thu Aug 21 17:28:00 1997 Jim Wilson <wilson@cygnus.com>
489 * alpha.h (ARCH_ASM_FILE_START): Define.
490 (ASM_FILE_START): Use ARCH_ASM_FILE_START.
491 * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
493 Thu Aug 21 10:22:19 1997 Jeffrey A Law (law@cygnus.com)
495 * Makefile.in (install-common): Put gcov comment at start of line.
497 Wed Aug 20 22:47:33 1997 Jeffrey A Law (law@cygnus.com)
499 * alias.c (init_alias_analysis): When simplifying the reg_base_value
500 array, simplify entries for hard registers too.
502 Wed Aug 20 12:35:47 1997 Dave Love <d.love@dl.ac.uk>
504 * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
507 Wed Aug 20 11:58:33 1997 Jim Wilson <wilson@cygnus.com>
509 * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
510 block_stack before dereferencing it.
512 Wed Aug 20 11:57:11 1997 Michael Meissner <meissner@cygnus.com>
514 * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
516 Tue Aug 19 17:10:56 1997 Jason Merrill <jason@yorick.cygnus.com>
518 * cplus-dem.c: Add 'extern' to prepends_underscore.
520 Tue Aug 19 09:34:57 1997 Jeffrey A Law (law@cygnus.com)
522 * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
523 (get_issue_rate): Delete.
524 * pa.h (ISSUE_RATE): Define.
526 * configure.in: Turn on haifa by default for the PA.
527 * configure: Rebuilt.
528 * pa.c (override_options): Accept -mschedule=7200 option.
529 (pa_adjust_cost): No longer need to scale costs for newer
531 * pa.h (enum processor_type): Add PROCESSOR_7200.
532 * pa.md: Revamp scheduling parameters to work better with
533 haifa. Add scheduling parameters for the 7200.
535 * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
537 (schedule_block): When adjusting basic_block_{head,end}, account
538 for movement of SCHED_GROUP_P insns too.
540 * haifa-sched.c (debug_dependencies): Fix thinko.
542 * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
543 (site.exp, check, check-g++, check-gcc): New targets.
545 * haifa-sched.c: Make lots of variables static.
547 Tue Aug 19 07:18:34 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
549 * expr.h, real.h: Finish prototyping.
551 Mon Aug 18 21:49:02 1997 Jim Wilson <wilson@cygnus.com>
553 * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
554 reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
555 * reload1.c: Undo bugfix from Aug 11.
557 Mon Aug 18 17:39:02 1997 Mike Meissner <meissner@cygnus.com>
559 * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
560 quotes around the name.
561 * configure: Regenerate.
563 Mon Aug 18 13:46:47 1997 Jim Wilson <wilson@cygnus.com>
565 * Makefile.in (stmp-multilib-sub): Fix typo in last change.
567 Thu Aug 7 10:33:13 1997 Manfred Hollstein <manfred@s-direktnet.de>
569 * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
570 to sub-makes to avoid building more passes than the user might have
571 requested on the command line.
573 Sun Aug 17 15:42:17 1997 Dave Love (d.love@dl.ac.uk)
575 * configure.in: Expurgate `broken_install' (install is
578 * configure.lang: Substitute autoconfed ${INSTALL} (not currently
581 Sat Aug 16 01:08:12 1997 Jeffrey A Law (law@cygnus.com)
583 * loop.c (is_power_of_2, is_conditional_branch): Delete unused
584 functions and declarations.
585 (analyze_loop_iterations): Use condjump_p.
586 (insert_bct): Likewise. Use exact_log2.
588 Fri Aug 15 23:48:32 1997 Jeffrey A Law (law@cygnus.com)
590 * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
591 (schedule_region): Likewise.
592 (schedule_insns): Likewise.
594 * PROJECTS: Update with Haifa stuff.
596 Fri Aug 15 12:49:56 1997 Jeffrey A Law (law@cygnus.com)
598 * version.c: Change the version string to look like:
599 egcs-2.90.00 970814 (gcc2-970802 experimental).
601 * loop.c (is_conditional_branch): Make definition match declaration.
603 * gcc.c: Take out experimental snapshot warning message.
605 Fri Aug 15 13:43:39 1997 Michael Meissner <meissner@cygnus.com>
607 * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
608 print out the names of the notes. Print out the name of the insn
609 that is not a note, and not an {,CALL_,JUMP_}INSN.
611 Wed Aug 13 01:03:37 1997 Doug Evans <dje@canuck.cygnus.com>
613 * configure.in (haifa configury): Fix typo.
614 * configure: Regenerate.
616 Tue Aug 12 10:20:36 1997 Jeffrey A Law (law@cygnus.com)
618 * version.c: Bump version to "gcc-3.0.0 970802 experimental".
620 * gcc.info*: Rebuilt.
622 * COPYING.g77, README.g77: New files.
623 * real.c (ereal_unto_float, ereal_unto_double): New functions.
624 * real.h (ereal_unto_float, ereal_unto_double): Declare them.
625 (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
627 Mon Aug 11 14:50:55 1997 Jeffrey A Law (law@cygnus.com)
629 * Integrate Haifa instruction scheduler.
630 * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS. Prefix all references
631 to sched with $(SCHED_CFLAGS.
632 * configure.in: Handle --enable-haifa.
633 * configure: Rebuilt.
634 * flags.h: Add new flags for haifa instruction scheduler.
635 * genattrtab.c (expand_units): For haifa, don't subtract one
636 when computing blockage.
637 * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
638 (flag_schedule_speculative): Ditto.
639 (flag_schedule_speculative_load): Ditto.
640 (flag_schedule_speculative_load_dangerous): Ditto.
641 (flag_schedule_reverse_before_reload): Ditto.
642 (flag_schedule_reverse_after_reload): Ditto.
643 (flag_branch_on_count_reg): Ditto.
644 (f_options): Add Haifa switches.
645 (main): Turn off some Haifa options if appropriate macro is
646 defined. Process Haifa switches.
647 * unroll.c (iteration_info): No longer static, since Haifa
649 (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
650 * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
651 * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
652 * loop.h (loop_initial_value,loop_unroll_iter): New globals.
653 * loop.c (loop_optimize): If HAIFA is defined, allocate additional
654 storage for the Haifa scheduler.
655 (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
657 (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
658 are defined, call analyze_loop_iterations and insert_bct to use
660 (record_giv): Refine test for jumps out of loops if HAIFA is
662 (analyze_loop_iterations): New function to identify if we can use
664 (insert_bct): Insert countdown loop.
665 (instrument_loop_bct): Low level code to insert countdown loop.
666 (loop_number): Calculate UID of loop.
667 (indirect_jump_in_function_p): Return true if an indirect jump is
669 (is_power_of_2): Return true if value is a power of 2.
670 (is_conditional_branch): Return true if insn is a conditional
672 (fix_bct_param): Process -fbct-{min,max}-N switches.
673 (check_bct_param): Return true if loop should be instrumented.
674 * loop.c (loop_initial_value,loop_unroll_iter): New globals.
675 (loop_optimize): Initialize.
676 (get_condition_for_loop): Ditto.
677 * loop.c (strength_reduce): Inside of code that uses #ifdef
678 HAVE_decrement_and_branch_on_count code, test it to make sure the
680 (instrument_loop_bct): Ditto.
681 * haifa-sched.c: New file.
684 * Integrate regmove pass.
685 * Makefile.in (OBJS): Add regmove.o
686 (regmove.o): Add dependencies.
687 * flow.c (find_use_as_address): No longer static.
688 * rtl.h (find_use_as_address): Declare.
689 * toplev.c (regmove_dump, flag_regmove): Define.
690 (f_options): Add -fregmove.
691 (regmove_dump_file, regmove_time): Define.
692 (fatal_insn): Close the regmove dump file.
693 (compile_file): Initialize regmove_time; open/close the regmove dump
694 file as needed. Print regmove time as needed.
695 (rest_of_compilation): Run regmove pass if requested, dump
696 RTL after regmove if requested.
697 (main): If -O2 or more, turn on regmove. Handle dump switches.
698 * regmove.c: New file.
700 Mon Aug 11 14:15:02 1997 Jeffrey A Law (law@cygnus.com)
702 * Integrate tlink patch from jason@cygnus.com
703 * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
704 (process_command): Increment n_switches for them. Don't discard
705 their args. Validate them.
706 (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
708 (process_command): Set include_prefixes from COMPILER_PATH.
709 (main): Set COLLECT_GCC_OPTIONS sooner.
710 * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
711 * tlink.c, hash.c, hash.h: New files.
712 * Makefile.in (USE_COLLECT2): Always use collect2.
713 (collect2): Depend on and link in hash.o and tlink.o.
714 (tlink.o, hash.o): Add dependencies.
716 Mon Aug 11 10:04:49 1997 Jeffrey A Law (law@cygnus.com)
718 * Integrate alias analysis changes from jfc@mit.edu
719 * Makefile.in (OBJS): Add alias.o
720 (alias.o): Add dependencies.
722 * sched.c: Remove alias analysis code. It lives in alias.c now.
723 (sched_analyze_2): Add new arguments to true_dependence.
724 (schedule_insns): Always call init_alias_analysis.
725 * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
726 mark return value from such functions as a pointer and keep track of
727 them for alias analysis. If a return value from a function is a
728 pointer, mark it as such.
729 * combine.c (distribute_notes): Handle REG_NOALIAS.
730 * cse.c (struct write_data): Delete. No longer needed.
731 (invalidate): Don't call set_nonvarying_address_components anymore.
732 Use true_dependence to decide if an entry should be removed from
734 (invalidate_memory): Remove WRITES argument, simplify appropriately.
736 (note_mem_written): Similarly for WRITE_PTR argument.
737 (invalidate_from_clobbers): Similarly for W argument.
738 (invalidate_for_call): Remove memory elements from the hash table.
739 (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
740 (cse_rtx_varies_p): New function. Derived from old
741 cse_rtx_addr_varies_p.
742 (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
743 Don't call note_mem_written anymore. Stack pushes invalidate the stack
744 pointer if PUSH_ROUNDING is defined. No longer need to call
745 cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
746 (skipped_writes_memory): Remove variable.
747 (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
748 (invalidate_skipped_block): Simplify for new alias analysis code.
749 (cse_set_around_loop): Likewise.
750 (cse_main): Call init_alias_analysis.
751 * flags.h (flag_alias_check, flag_argument_noalias): Declare.
752 * toplev.c (flag_alias_check, flag_argument_noalias): Define.
753 (f_options): Add new alias checking arguments.
754 (main): Set flag_alias_check when optimizing.
755 * local_alloc (validate_equiv_mem_from_store): Add new arguments
757 (memref_referenced_p): Likewise.
758 * loop.c (NUM_STORES): Increase to 30.
759 (prescan_loop): Only non-constant calls set unknown_address_altered.
760 (invariant_p): Add new arguments to true_dependence.
761 (record_giv): Initialize unrolled and shared fields.
762 (emit_iv_add_mult): Call record_base_value as needed.
763 * loop.h (struct induction): Add unrolled and shared fields.
764 * unroll.c (unroll_loop): Call record_base_value as needed.
765 (copy_loop_body): Likewise.
766 (final_biv_value): Likewise.
767 (final_giv_value): Likewise.
768 (find_splittable_regs): Likewise. Only create one new pseudo
769 if we have multiple address GIVs that were combined with the same
770 dst_reg GIV. Note when a new register is created due to unrolling.
771 * rtl.c (reg_note_name): Add REG_NOALIAS.
772 * rtl.h (enum reg_note): Similarly.
773 (rtx_varies_p, may_trap_p, side_effects_p): Declare.
774 (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
775 (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
776 (true_dependence, read_dependence, anti_dependence): Likewise.
777 (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
778 (mark_user_reg, mark_reg_pointer): Likewise.
781 * Integrate reload bugfix from Wilon which enables the PA port
783 * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
784 OPERAND_ADDRESS when computing how many registers an insn needs.
785 (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
787 (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
789 (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
790 in reload_reg_use_in_op_addr do not reach the end.
791 do not reach the end.
792 (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
793 RELOAD_FOR_OPERAND_ADDRESS.
795 Sun Aug 10 12:00:20 1997 Jeffrey A Law (law@cygnus.com)
797 * egcs project officially starts.